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					Title: 
					 Proceedings of the National Academy of Sciences of the United States of America (PNAS)
					
				
				
				
	            
	                Source Genre: 
	                
	                Journal
	                
	            
				
				
					  Creator(s): 
					 
					
				
				
				
					Affiliations: 
					 
					
				
				
				
					Publ. Info: 
					 -
					
				
				
					Pages:
					
					
					-
					
				
					Volume / Issue: 
					
					111 (9)
					
				
					Sequence Number: 
					
					-
					
				
					Start / End Page: 
					
					3228 - 3232
					
				
					Identifier: 
					
					-